Check Valve Push-in Fittings for Progressive Distributor Check Valve Push-in Fittings for Progressive Distributor
Check Valve Push-in Fittings for Progressive Distributor Check Valve Push-in Fittings for Progressive Distributor

loading

Check Valve Push-in Fittings for Progressive Distributor

Share to:
facebook sharing button
twitter sharing button
line sharing button
linkedin sharing button
pinterest sharing button
whatsapp sharing button
sharethis sharing button
Lubrication system check valves to push-in fitting type
For Centralized Lubrication Progressive Distributors
With one seal and double seal Design
Push to Connector Check Valves
  • Straight

Availability:

PDF Export

What Are Check Valve Push-In Fittings?

Check valve push-in fittings combine the convenience of quick-connect push-in fittings with a built-in check valve mechanism. Designed for use in progressive lubrication distributors, these fittings ensure unidirectional fluid flow, preventing backflow that could disrupt lubrication cycles or damage sensitive components. Ideal for hydraulic, pneumatic, and automated lubrication systems, they are critical for maintaining precision in applications requiring consistent, contamination-free lubricant delivery.


How Check Valve Push-In Fittings Work

These fittings integrate two core technologies:

  1. Push-to-Connect Design: Tool-free installation by inserting tubing into the fitting until it locks securely.

  2. Check Valve Mechanism: A spring-loaded ball or poppet inside the fitting opens under system pressure to allow forward flow and closes to block reverse flow.

This dual functionality ensures reliable performance in progressive distributors, which meter lubricant to multiple points sequentially. The check valve prevents lubricant from flowing backward, maintaining system pressure and distribution accuracy.


Key Benefits for Progressive Lubrication Systems

  1. Prevent Backflow: Safeguard against pressure loss and lubrication cycle disruptions.

  2. Ensure System Integrity: Protect pumps and valves from damage caused by reverse fluid movement.

  3. Fast Installation: Reduce downtime with tool-free assembly—no threading or clamps required.

  4. Leak Resistance: Integrated O-rings and collets maintain seals under high vibration and pressure (up to 150–250 PSI).

  5. Material Versatility: Available in brass, stainless steel, or thermoplastics for compatibility with oils, greases, and aggressive fluids.


Applications in Progressive Distributors

Progressive distributors are widely used in centralized lubrication systems to deliver precise amounts of lubricant to multiple points. Check valve push-in fittings enhance their performance in:

  • Automotive Manufacturing: Ensuring consistent lubrication for robotic arms, assembly lines, and CNC machines.

  • Heavy Machinery: Protecting excavators, mining rigs, and agricultural equipment from dry-running bearings.

  • Food & Beverage: Hygienic designs for NSF-certified systems requiring contamination-free lubrication.

  • Packaging Machinery: Preventing grease backflow in high-speed bottling or sealing equipment.


Check Valve vs. Standard Push-In Fittings

Feature Check Valve Push-In Fittings Standard Push-In Fittings
Backflow Prevention Yes (built-in valve) No
Pressure Retention High (maintains system pressure) Dependent on external valves
Ideal Use Case Progressive systems, bidirectional risks Simple unidirectional systems
Cost Slightly higher (added valve mechanism) Lower

How to Select the Right Check Valve Push-In Fitting

  1. Flow Direction: Confirm the valve is oriented correctly for your system’s flow requirements.

  2. Cracking Pressure: Ensure the valve’s opening pressure (e.g., 3–5 PSI) aligns with your system’s minimum operating pressure.

  3. Fluid Compatibility: Match materials (e.g., stainless steel for corrosive fluids) to your lubricant type.

  4. Tubing Size: Verify compatibility with your distributor’s tubing dimensions (e.g., 1/8” or 6mm).

  5. Temperature Range: Select fittings rated for operational extremes (-20°C to 80 °C).


Installation & Maintenance Best Practices

  1. Clean Tubing Ends: Debris-free cuts prevent valve clogging or seal damage.

  2. Test Flow Direction: Confirm the check valve opens in the intended flow direction.

  3. Avoid Over-Pressurization: Stay within the fitting’s PSI rating to prevent valve failure.

  4. Regular Inspections: Check for wear on O-rings or valve components during system maintenance.

  5. Retrofit Gradually: Replace standard fittings in critical zones first to minimize downtime.


FAQs About Check Valve Push-In Fittings

Q: Can these fittings handle viscous lubricants like grease?
A: Yes, but select models with larger flow paths and higher cracking pressures to avoid clogging.

Q: Are they reusable?
A: Absolutely—disconnect by pressing the release collar and reuse after inspection.

Q: Do check valves affect flow rates?
A: Minimally, but ensure the valve’s design (e.g., ball vs. poppet) suits your viscosity requirements.

Q: How do I troubleshoot a stuck valve?
A: Flush the system to remove debris or replace the fitting if the spring or seal is damaged.


Specification of Check Valve Push-In Fittings with one-sealing 

AHPV Push-in Fittings Non-return Valves quick connector

Part No.

Tube

Thread

Item No.

RVP04M10

4

M10X1

AHPV04-M10x1

RVP06M10

6

M10X1

AHPV06-M10x1

RVP08M10

8

M10X1

AHPV08-M10x1

RVP10M10

10

M10X1

AHPV10-M10x1

RVP1/8M10

1/8

M10X1

AHPV1/8-M10x1

RVP5/32M10

5/32

M10X1

AHPV5/32-M10x1

RVP1/4M10

1/4

M10X1

AHPV1/4-M10x1

RVP3/8M10

3/8

M10X1

AHPV3/8-M10x1


Previous: 
Next: 

ABOUT FITSCH

Fitsch has been in the business of hydraulic tube fittings, hydraulic adapters, hose fittings, hydraulic flanges, industrial fittings and hydraulic accessories for over 20 years, offering all our customer competitive products and supplies from our local industry manufacturers union.    
 

PRODUCT CATEGORY

CONTACT US

   No.133-3 Anjiexi Road, Sanqishi Town, Yuyao 315412, China
   +86-13777243045
   info@fitsch.cn

 
Copyright  2024 Fitsch Ningbo International Trade Co.,ltd .  All rights reserved